python for loop
# A for loop in python is used to iterate (or loop) over a sequence.
# The sequence is usually range(start,end), but can also be a list.
# Example of for loop with range():
for num in range(1,10):
print(num)
# This prints all the numbers from 1 to 10, including 1 but excluding 10.
# Here is an example of a for loop with a list:
lst = [1,2,3,4,5]
for item in lst:
print(item)
# This prints all items in the list.
# For loops are also used in list comprehensions.
lst = [1,2,3,4,5]
new_lst = [item for item in lst if i % 2 == 0]
# The list comprehension above generates a new list, which new_lst is put equal to.
# It iterates through the items in lst and only puts them in the new list if it is a multiple of 2.